Rolling mill



July 14, 1936. c w p ps 2,047,883

ROLLING MILL Filed Sept. 3, 1935 3 Sheets-Sheet 1 INV TO ATTORNEY July 14, 1936. c. w. PHILUPS ROLLING MILL Filed Sept. 3, 1935 3 Sheets-Sheet 2 ATTORNEI c. w. PHILLIPS ROLLING MILL July 14, 1936.

I Filed Sept. 5, 1935 3 Sheets-Sheet 3 Patented July 14, 1936 UNITED STATES PATENT OFFICE 6 Claims.

The invention relates to rolling mills and more especially to cold metal strip rolling mills.

The primary object of the invention is the provision of a mill of this character, wherein the rolls for action upon a metal strip for the cold rolling of the same are supported in a novel manner so that the position thereof can be shifted and in this fashion assuring throughout the operation of the mill a smooth and .flat action on the strip and in this way avoiding the grooving of these rolls with the result that the material acted upon can be drawn out to reduce thickness of the strip and to assure a smooth finish thereto.

Another object of the invention is the provision of a mill of this character, wherein the rolls supported for adjustment transversely of the mill housings are shifted through gear and rack connections in a novel manner and in this fashion a uniformity of wear upon these rolls is assured with the result that the strip acted upon will be smooth and at the same time avoiding the possibility of pitting or uneven wearing of the same during the operation ofv the mill.

A further object of the invention is the provision of a mill of this character, wherein the work to be operated upon can bereadily handled and such work reduced and finished in strip form and at the same time accomplishing this efiiciently and economically, the rolls acting upon the work being so mounted for adjustment for altering the working surface thereof in confronting relation to the work.

A still further object of the invention is the provision of a mill of this character, wherein the rolls operating upon the work are so held as to have little or no tendency to vibrate for With these and other objects in view, the in vention consists in the features of construction, combination and'arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which disclose the preferred embodiment of the invention and pointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is an elevation of a mill constructed in moi-dance .with the invention.

Figure 2 is a top plan view partly broken away.

Figure 3 is an end elevation.

Figure 4 is a fragmentary enlarged sectional View taken on the line 44 of Figure 2 looking in the direction of' the arrows.

. Figure 5 is a sectional view on the line 5--5 of Figure 1 looking in the direction of the arrows.

Figure 6 is a sectional view on the line 66 of Figure 1 looking in the direction of the arrows.

Similar reference characters indicate corre- 10 sponding parts throughout the several views in the drawings.

Referring to the drawings 'in detail, the mill. comprises a pair of spaced vertical mill housings Ill and I I, respectively, these vertically ar- 15 ranged in their spaced relation to each other and are joined together by cross tie bars or rods I2 made secure in the housings in any suitable manner. The lower ends of these housings I0 and II are provided with feet I3 to rest upon 20 a foundation or flooring and arranged at the outer sides of such housings are laterally disposed stands or tables I4 for a purpose presently described.

The housings I II and II are formed with win- 25 dows I5 accommodating bearings I6 and I1, respectively, these accommodating the necks of backing-up rolls I8 between which are located the working rolls I9. The rolls I9 have their tapered necks fitting bearings 20 in their super- 30 posed relation to each other. The bearings 20 are fitted in boxings .2I which are fixed to and carried by conveyors 22 so that the rolls IS in their parallel relation to each other can be shifted as a unit crosswise of the housings II] and II 35 between the rolls I8 which are above and below the said rolls I9.

The conveyors 22 have trackage at 23 in the tables or stands I4 and are arranged in a horizontal plane. 40

Each conveyor 22 is formed with a toothed rack 24 meshing with a rack pinion 25 having its a'rbor 26 journaled in the side walls of each of said tables or stands Id. The arbor 26 at one side of the table I4 carrying the same extends 45 therefromandhas a flat faced terminal 21 for fitting with a turning crank (not shown) so that each conveyor can be shifted for changing the position of the working rolls I9 with respect to the work.

The manner of mounting the backing-up rolls I8 above the working rolls I9 is shown in Figure 6 of the drawings. There the bearings I I are shown normally urged apart by means of suitable 55 coiled springs 28. The bearings 23 for the rolls l9 are slidably fitted in the boxings 2!.

The screw-down mechanism involves the vertical screws 29, these threaded in the upper cap ends of the housings l0 and II and the inner ends of these screws 29 play against the bearings I! on those sections uppermost with relation to the springs 28 and suchscre'ws 29 are manually regulated for screw-down action.

The windows l5 at opposite sides of the housings are closed by sectional removable cover plates 3| which have clearances 32 and 33 for the uppermost of the rolls l8 and the working rolls l3,

respectively.

The steel strip, a portion being indicated at 34, is passed between the rolls I9 and over guide rolls, 35 suitably journaled in the housings Ill and II at opposite sides of the vertically arranged rolls l8 and i9 andthis strip 34 is: wound on and unwound from feed drums '(not prising backing-up rolls, superposed working rolls shown) they being of conventional form and in the operation of the mill the strip is reciprocated by the alternate winding and unwinding of said strip by the drums whichare driven in any desirable manner through an electric motor (not shown).

' strip 34 and such adjustment is bad in that each boxing includes a capping part 31' held down by tensioning means 38.

On reciprocating the work, that is to say, the strip 34 the same is subjected to a drawing action or high tension and also to compression suitable for reducing the thickness of the metal of the strip, the compression being efiected by the rolls i9 which frictionally operate and coact with the rolls I8.

It will be apparent from Figure 4 of the drawings that these working rolls l9 are susceptible of adjustment transversely of the housings l0 and II between the rolls I3 and the compression is regulated by the screw-down mechanism in. the operation of the mill.

The] strip 34 is cold rolled in the mill when the same/is operated. 1

What is claimed is: 1

1. In a mill of the character described comprising backing-up rolls, superposed working rolls between said backing-up rolls and parallel there- .with, the working rolls being of considerably rolls between said backing-up rolls and parallel therewith, the working rolls being of considerably greater length than the backing-up rolls and constantly between the latter, conveyors carrying said working rolls, means for shifting the.

conveyors to move the working rolls axially with relation to the backing-up rolls and a distance approximately one-half the length of said backing-up rolls, and means for vertical adjustment of one of the working rolls. 3. In a-mill of the character described comprising backing-up rolls, superposed working rolls between said backing-up rolls and parallel therewith, the working rolls being of considerably greater length than the backing-up rolls and constantly between the latter; conveyors carrying said working rolls, means for shifting the conveyors to move the working rolls axially with relation to the backing-up rolls and a distance approximately one-half the length of said backing-up rolls, means for vertical adjustment of one or the working rolls; and a screw-down mechanism operating on the uppermost backing-up roll.

4. In a mill of the character described combetween said backing-up rolls and parallel therewith, the workingrolls being of considerably greater length than the backing-11p rolls and constantly between the latter, conveyors carrying said working rolls, means for shifting the conveyors to move the working rolls axially with relation to the backing-up rolls and a distance approximately one-half the length of said backing-up rolls, means for vertical adjustment of one of the working rolls, a screw-down mechanism operating on the uppermost backing-up roll, and guide rolls at'opposite sides of the working rolls for guiding strip material therebetween.

5. In a mill of the character described corn- 5 prising backing-up rolls, superposed working rolls between said backing-up rolls and parallel therewith, the working rolls being of considerably greater length than the backing-up rolls and constantly between the latter, conveyors carrying said working rolls, means for shifting the conveyors to move the; working rolls axially with relation to the backing-up rolls and a distance approximately one-half the length of said backing-up rolls, means for vertical adjustment of one of the working rolls, a screw-down mechanism operating on the uppermost backing-up roll, guide rolls at opposite sides of the working =ro1ls for guiding strip material therebetween, and

mill housingsarranged in vertical spaced relation to each other and supporting the backingup rolls a 6. In a mill of the character described comprising backing-up rolls, superposed working rolls between said backing-up rolls and parallel therewith, the working rolls being of considerably greater length than the backing-up rolls and constantly between the latter, conveyors carrying saidworking rolls, means for shifting the conveyors to move the working rolls axially with relation to the backing-up rolls and a. distance approximately one-half the length of said backing-up rolls, means for vertical adjustment of one of the working rolls, a screw-down mechanism operating on the uppermost backingup,

roll, guide rolls at opposite sides of the working rolls for guiding strip material therebetween, mill housings arranged in vertical spacedrelation to each other and supporting the backing-up rolls,

and stands associated with said housings and having trackage for the conveyors.

CHARLES w rs.- 

